Articles tagged with Superconductors
Researchers at the University of Illinois have used high-resolution microscopy tools to study an unusual type of superconductor, uranium ditelluride (UTe2). The measurements reveal strong evidence for the presence of exotic Majorana particles on its surface, which could provide insights into fundamental physics and quantum computing.
Researchers at Brookhaven Lab have direct spectroscopic evidence for a pair density wave coexisting with superconductivity, revealing modulating energy gap structures and pairing of electrons. This finding may help understand the complex phase diagram of high-Tc cuprate superconductors.
At 2-dimensional limit, researchers at Peking University detect novel zero-energy bound states resembling Majorana zero-energy bound states in interstitial Fe adatoms on high-temperature superconducting thin films. These findings exhibit characteristics of Majorana zero mode, a potential building block for topological qubit.
Scientists at Peking University have discovered Majorana zero modes (MZMs) at both ends of 1D atomic line defects in iron-based high-temperature superconductors. The MZMs exhibit robust properties and can be detected using scanning tunneling microscopy/spectroscopy, offering a promising platform for topological quantum computing.
Scientists have successfully manipulated individual atoms to exhibit collective behavior, a crucial step towards creating room-temperature superconductors. The study uses atomic manipulation to place cobalt atoms on copper surfaces in a perfectly ordered pattern, demonstrating the potential for higher temperatures.
Researchers at Skoltech and Jilin University created superconducting compounds of hydrogen and praseodymium, overcoming the challenge of low-temperature superconductors. The new compounds exhibit zero electrical resistance at -264 °C, paving the way for high-temperature superconductors.
Researchers at Aalto University and University of Jyvåskylä reveal the origin of graphene's superconductivity, attributing it to a subtle quantum mechanics effect. This discovery could help understand high-temperature superconductors and lead to room temperature operation.
Researchers have found a new noncentrosymmetric superconductor, CaPtAs, exhibiting unusual properties and potential for studying unconventional superconductivity. The discovery offers new opportunities to explore the effects of broken inversion symmetry on superconducting gap structure.
Researchers have discovered that atomic quantum fluctuations stabilize the record-breaking superconductor LaH10, enabling superconductivity at much lower pressures than previously expected. The study reveals a highly symmetric structure with a single minimum energy landscape, contrary to classical predictions, which could lead to high-...
Scientists at the University of Münster demonstrated energy quantization in nanowires made of high-temperature superconductors, enabling simplified cooling technology and longer lifetimes for resonators. This breakthrough paves the way for new experimentally verifiable theoretical descriptions and technological developments.
A new synthesis method has been developed to unlock the secrets of 'strange metals', which exhibit unusual temperature behavior. The research team's findings confirm that quantum-critical charge fluctuations play a key role in their behavior.
Physicists have created a detailed band structure map for iron selenide, exposing its electronic signature and shedding light on its complex behavior. The study aims to guide the development of new materials with amazing properties.
A team of researchers from the University of Jyvaskyla and others have studied the out-of-equilibrium dynamical state induced by microwave photon absorption in diffusive Superconductor-Normal metal-Superconductor junctions. Strong anharmonicity of the current-phase relation arises under illumination, driven by non-adiabatic transitions.
Researchers discovered an abrupt shift in electron behavior in high-temperature superconductors, revealing a 'strange metal' state with collective electrons. This finding challenges existing theories and opens new avenues for exploration.
A team of Princeton researchers observed a surprising quantum effect in an iron-based superconductor when cobalt atoms were added. The findings challenge Anderson's theorem and provide new insights into the behavior of unconventional materials.
Computer simulations have yielded a more accurate picture of strange metals and their connection to high-temperature superconductivity. The study reveals that changing temperature or electron flow can flip the material between a superconductive state and a strange metal state, shedding light on this phenomenon.
A team of researchers has revealed a new state of matter where Cooper pairs enable electricity to flow with some resistance. This finding challenges current theories and requires further investigation. The discovery was made using a technique that involves patterning a thin-film superconductor with arrays of tiny holes.
A team of scientists has successfully synthesized a new high-temperature superconductor, thorium decahydride (ThH10), with a critical temperature of 161 K. The material exhibits outstanding high-temperature superconducting performance and pushes the boundaries of classical chemistry.
Researchers at Moscow Institute of Physics and Technology have synthesized a new superconducting material called thorium decahydride (ThH10), which exhibits high-temperature superconductivity at 161 kelvins. This breakthrough is significant as it could lead to the development of more practical applications for superconductors.
Researchers from Chinese Academy of Sciences report discovery of Pr3Cr10-xN11, a chromium-based nitride superconductor with bulk superconductivity at 5.25 K, exhibiting a large upper critical field and strong electronic correlations. The material is the first Cr-based superconductor found in Chromium Nitrides.
Researchers from ICFO have observed a variety of previously unseen superconducting and correlated states in magic-angle graphene, including an entirely new set of magnetic and topological states. The discovery has led to a record-high superconducting transition temperature above 3 kelvin.
Researchers at EPFL's QMAT laboratory have discovered a way to produce materials with controlled superconducting regions, paving the way for new quantum technologies. By distorting atomic bonds in thin layers of CeIrIn5, scientists can create complex conducting patterns and distribute them within the material in a highly controlled way.
Researchers discovered re-entrant superconductivity in uranium ditelluride, a phenomenon where a superconducting state arises, breaks down, and then re-emerges. High magnetic fields induced the rare 'Lazarus' behavior, which has implications for quantum computing.
Researchers at Ohio State University have made a discovery that could provide new insights into how superconductors might move energy more efficiently. They found that graphene can become a superconductor when twisted to an angle of around 0.9 degrees, which is less than previously thought.
Researchers successfully simulated high-temperature superconductivity in cuprate materials using the Hubbard model, a decades-old representation of electron behavior. The study suggests that tweaking electron hopping patterns can toggle superconductivity on and off, offering a promising step towards producing controlled superconductors.
Using laser pulses, researchers successfully induced superconductivity in an iron-based compound at a temperature of minus 258 degrees Celsius. This breakthrough could lead to more power-efficient devices and infrastructure if it can be scaled up to room-temperature applications.
Scientists have identified an unusual electron scattering phenomenon in hybrid systems of Bose-Einstein condensates and 2D electron gases. This discovery opens up new possibilities for designing high-temperature superconductors by exploiting the unique interactions between electrons and Bogoliubov quanta.
Physicists have identified how to distinguish between true and 'fake' Majorana states in topological superconductors, a crucial step for advancing the field of quantum computers. By investigating supercurrents, they found that sign reversals can indicate trivial states.
High-temperature superconductors exhibit variable charge density due to 'charge density waves' and newly identified 'charge density fluctuations'. The latter are pervasive, present at room temperature, and affect the material's superconducting properties without competition with charge density waves.
Researchers have identified a new property in superconductors called dynamical charge density fluctuations in cuprates. These fluctuations affect electrical resistance in the 'normal' state above the superconducting critical temperature.
Researchers at SLAC National Accelerator Laboratory have made the first nickel oxide material that exhibits clear superconducting properties. The discovery is significant as it opens up new possibilities for high-temperature superconductors, which could revolutionize electronic devices and power transmission.
Researchers detected a large concentration of electron pairs outside key temperature and energy ranges in a copper-oxide material, sparking hope for improving the superconducting properties of cuprates. By leveraging this knowledge, scientists may be able to enhance superconductivity by tweaking parameters or searching for other materi...
Researchers discovered that electrons in copper oxide superconductors continue to pair up even above the critical temperature, reducing the energy gap. This finding constrains theories about high-temperature superconductivity and opens avenues for designing more precise materials.
Researchers at Rice University discovered electron pairing in ultrapure lanthanum strontium copper oxide (LSCO) samples at temperatures well above the critical threshold for superconductivity. The finding suggests two energy scales exist, one where pairs form and another where they exhibit collective behavior.
Scientists at the University of Illinois and SLAC National Accelerator Laboratory have applied a new x-ray scattering technique to probe high-temperature superconductivity in cuprates. They found that charge-order fluctuations may mediate superconductivity, and that these fluctuations obey a universal scaling law.
Researchers at SLAC used X-rays to observe fluctuations in charge density waves, discovering a universal dynamical scaling law that reveals the slow diffusion of a syrup-like behavior. Another study found two types of hidden arrangements, making a new link between charge stripes and high-temperature superconductivity.
Scientists have discovered a superconductor that can resist quantum decoherence, allowing for longer qubit lifetimes and more efficient quantum logic circuits. The material, uranium ditelluride (UTe2), has unique properties that make it attractive for building quantum computers.
Researchers found that twisted bilayer graphene's moiré pattern creates a state where electrons organize into stripes, leading to robust properties. The discovery provides new evidence for the link between graphene and high-temperature superconductors.
Scientists at the University of Vienna have developed a method to produce ultradense arrays of magnetic quanta in high-temperature superconductors, inspired by traditional Japanese basket weaving art. The research uses a helium-ion microscope to create complex periodic arrangements with dense defect structures, which can be used to stu...
New experiments reveal that magic-angle twisted graphene's superconductivity arises from strong interactions between electrons, yielding insights into the rules governing superconductivity. The discovery provides a fundamentally different mechanism for superconductivity compared to traditional materials.
A UC Riverside physicist is studying strongly interacting systems to improve understanding of superconductivity and potentially develop novel materials. The research combines recent advances from high energy and condensed matter physics with insights from quantum information theory.
Scientists at Harvard confirmed a 23-year-old theory of superconductors by studying ultra-thin bismuth-based materials. The confirmation offered a quantitative description of the anomalous reverse Hall effect, shedding light on the behavior of magnetic vortices in high-temperature superconductors.
A joint team of scientists at UC Riverside and MIT has developed a new heterostructure material system based on gold that can potentially demonstrate the existence and quantum nature of Majorana fermions. The research shows superconductivity, magnetism, and electrons' spin-orbit coupling can co-exist in gold.
The study reveals a multi-state transition in NbSe2, transitioning from superconductor to special metal (Bose metal) and then to insulator. The team found that the transition is driven by quantum fluctuations, with the material exhibiting minimal resistance due to moving vortices.
Researchers have discovered a new high-temperature superconductor (Ba2CuO4-δ) with a transition temperature above 73K, featuring an exceptionally compressed local octahedron and heavily over-doped hole carriers. This finding challenges the long-held scenario of superconductivity in cuprates.
Researchers at the University of Maryland have captured evidence of Klein tunneling in a superconductor-superfluid junction, allowing particles to tunnel through barriers. This phenomenon enables engineers to design more uniform components for future quantum computers and devices.
Researchers found that even after losing ability to carry electrical current with no energy loss, materials retain some conductivity and possibly electron pairs required for superconductivity. The discovery supports the role of 'charge stripes' in formation of charge-carrier pairs essential to resistance-free flow of electrical current.
A team of Princeton researchers has successfully controlled Majorana quasiparticles in a setting that makes them more robust. They achieved this by combining a superconductor and an exotic material called a topological insulator, which enables the detection of Majoranas with less susceptibility to heat or vibrations.
The discovery of a field-induced pair density wave state in high temperature superconductors provides new insights into the mechanism behind enigmatic high temperature superconductivity. The study reveals modulations in electronic states with multiple signatures of a pair density wave state, which competes with superconductivity.
The superconducting quantum refrigerator utilizes the principles of superconductivity to create an environment conducive to generating unique properties that defy classical physics. Researchers successfully demonstrate a practical way to use the device, paving the way for advancements in quantum technologies and ultrafast computing.
Researchers have observed an electric-field controlled reversible transition from superconductor to ferromagnetic insulator in (Li,Fe)OHFeSe thin flake. This work provides a unique platform to study the relationship between superconductivity and ferromagnetism in Fe-based superconductors.
Researchers used AI to evolve superconductors by optimizing defect structures, reducing losses and increasing efficiency. By mimicking natural selection, they created materials that can transmit electric current without resistance.
Physicists from the University of Belgrade have found a way to manipulate superthin layers of graphene to create new artificial materials with enhanced properties. Applying tensile biaxial strain increases the critical temperature, making high-temperature superconductivity easier to achieve.
Researchers report a unique copper oxide exhibiting high-temperature superconductivity at up to 73 K, distinct structural features from known cuprate superconductors. This discovery suggests new directions for developing high-temperature superconductors.
New experiments by US, Chinese and European physicists have found iron selenide's magnetic properties are highly anisotropic, like other iron superconductors. The material's structure and electronic behavior are surprisingly similar to those of other iron-based superconductors.
Researchers at Zhejiang University have discovered a new iron-based superconductor with double FeAs layers, which is stabilized by inter-block charge transfer. The newly found superconductor, BaTh2Fe4As4(N0.7O0.3)2, exhibits contrasting structural and physical properties compared to previous hole-doped IBSCs.
Scientists from the University of Würzburg and Harvard University successfully created quasi-particles called Majorana fermions in a two-dimensional system, paving the way for topological quantum computers. This breakthrough enables more powerful and efficient computing capabilities.
In a study published in Physical Review Letters, researchers reveal that repulsive interactions between Cooper pairs themselves hold them in check in insulating materials. This finding could lead to new manipulation methods for superconducting devices and the design of novel electronic components.
Researchers at Tohoku University and Université Grenoble Alpes have demonstrated triplet superconductivity in the uranium-based material UBe13 using high pressure and magnetic fields. This phenomenon involves electrons forming parallel spin pairs, unlike conventional superconductors where opposite spins pair together.
The team found that the crystals of the layered bismuth chalcogenide superconductor exhibit two-fold symmetry in its superconductivity, contradicting the expected four-fold symmetry. This finding suggests a connection to nematicity, an enigmatic class of materials known for breaking rotational symmetry.